Anti-Paravalvular Leakage Component for a Transcatheter Valve Prosthesis

a transcatheter valve and anti-paravalvular technology, applied in the field of anti-paravalvular leakage components of transcatheter valve prostheses, can solve the problems of insufficient or regurgitating, valves that cannot open properly, stenosis and insufficiency,
US20140243966A1Active Publication Date: 2014-08-28MEDTRONIC ARDIAN LUXEMBOURG SARL
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
MEDTRONIC ARDIAN LUXEMBOURG SARL
Publication Date
2014-08-28

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Abstract

A transcatheter valve prosthesis includes an expandable tubular stent, a prosthetic valve within the stent, and an anti-paravalvular leakage component coupled to and encircling the tubular stent. The anti-paravalvular leakage component includes a radially-compressible annular scaffold, which is a sinusoidal patterned ring of self-expanding material, and an impermeable membrane extending over the annular scaffold. The anti-paravalvular leakage component has an expanded configuration in which at least segments of the annular scaffold curve radially away from the tubular stent. Alternatively, the anti-paravalvular leakage component includes a plurality of self-expanding segments and an annular sealing element coupled to inner surfaces of the segments. The anti-paravalvular leakage component has an expanded configuration in which the segments curve radially away from the tubular stent and the annular sealing element is positioned between an outer surface of the tubular stent and inner surfaces of the segments. The segments may be orthogonal or oblique to the outer surface of the tubular stent.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application is a Continuation-in-Part of and claims the benefit of U.S. patent application Ser. No. 13 / 757,380, filed Feb. 1, 2013, the disclosure of which is herein incorporated by reference in its entirety.FIELD OF THE INVENTION

[0002] The present invention relates to transcatheter valve prostheses and methods of preventing paravalvular leakage. More specifically, the present invention relates to an anti-paravalvular leakage component integrated on an outer surface of a transcatheter valve prosthesis to seal gaps between a support frame of the prosthesis and native valve tissue.BACKGROUND OF THE INVENTION

[0003] A human heart includes four heart valves that determine the pathway of blood flow through the heart: the mitral valve, the tricuspid valve, the aortic valve, and the pulmonary valve. The mitral and tricuspid valves are atrioventricular valves, which are between the atria and the ventricles, while the aortic and pulmonary valves...

Claims

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